Apparatus for regulating electric generating systems.



No. 685,577. Patented Oct. 29, 1901. A. DE DION & e. BOUTUN. APPARATUSrommaeuume ELECTRIC GENERATING svsnzms.

(Application filed June 4, 1901 (In. Modal.) 2 Sheets-Sheet I.

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Patented Oct, 29, IBM.

A. DE DION &. G. BOUTON. APPARATUS FOR REGULATING ELECTRIC GENERATINGSYSTEMS.

2 Sheets-Sheet 2.

(A ationzled June 4, 1901.) (lo lodel.) 1g.

Wawa 66 Z woroum UNITED STATES PATENT OFFICE.

ALBERT DE DION AND GEORGES BOUTON, OF PUTEAUX, FRANCE.

APPARATUS FOR REGULATING ELECTRIC GENERATING SYSTEMS.

SPECIFICATION forming part of Letters Patent N 0. 685,577, dated October29, 1901.

Application filed June 4, 1901. Serial No. 63,165. (No model.)

To all whom it may concern.-

Be it known that we, ALBERT DE DION and GEORGES BOUTON, engineers,citizens of the French Republic, residing at Puteaux, Seine, France,(both having post-office address 24. Quai National, in the said city ofPuteauX,) have invented certain new and useful Improvement-sin ApparatusforRegulating Electric Generating Systems, of which the following is aspecification.

This invention relates to internal-combustion engines driving adynamo-electric machine, and has for its object an arrangement by meansof which the speed of the engine is regulated by the dynamo itself, soas to insure a constant difference of potential at its terminals, thesaid dynamo acting on the eduction-valve of the internalcombustionengine so as to vary its speed according to the intensity of the currentto be furnished.

In order that our invention may be clearly understood,we shall describeit with reference to the accompanying drawings, of which- Figure 1 is adiagrammatical plan view of the general arrangement. Fig. 2 represents,on an enlarged scale, the combination of the solenoid, further termed anelectromagnetic governor, with the device for varying the lift of theeduction-valve stem, as described in Letters Patent granted to us, No.665,501, dated January 22, 1901.

The motor (shown at B, Fig. 1) of the De Dion and Bouton type drives adynamoelectric machine .9 of any construction, the main circuit 25 ofwhich has a derived circuit 20, on which is placed a solenoid, (shown ata.) This latter is placed as regards the motor as described above andshown in Fig. 2. The stem ChOf the eduction-valve is actuated by a camI) through the medium of a horizontal arm 0, which is capable ofhorizontal sliding movement, being mounted on a stud d, and causedtoslide by a disk 6, oscillating on an axisf. The shape of the said arm0 is such that according to its position the eduction-valve is more orless raised from its seat, and the speed of the internalcombustionengine varies according to the greater or less quantity of the productsof combustion cushioned in the cylinder, as described in Letters Patentgranted to us, No. 665,501, dated January 22, 1901'. The fluctuations ofthe voltage regulates the speed of the said internalcombustion enginesas follows: On the axis fof the aforesaid oscillating disk e is keyed apulley g, a groove in the periphery of which receives a cord or wire 71,attached at one end to the core 2' of a solenoid, which we term anelectromagnetic governor. This governor is constituted by a solenoid-j,a lower disk k, and an upper disk or annulus m, both of which areconnected together by an external casing a, surrounding the coils of thesolenoid. The core of the solenoid may be constituted by a metalcylinder coned at the lower part and having screwed into its up per enda stem 0 for connecting it to the aforesaid cord or wire h. The lowerpart of the said core is fitted with a cylindrical guidingrod 13,capable of sliding in a cylindrical hole provided in the central part ofthe aforesaid lower disk 7c, which central part may project upward toreceive a brass tube g and be re- Versely coned to correspond to theconed lower end of the core. The said core is received in the said brasstube, which contains a cushioning liquid, such as oil, glycerin, or thelike.

The solenoidj is in a shunt from the dynamo, as shown in Fig. 1. Themagnetic lines of force produced by the current flowing through thesolenoid run through the aforesaid lower disk 70, the outer casing 01,the upper disk or-annulus m, and the core, the magnetic circuit beingthus closed and protected against externalaction by the said outercasing n. The attraction exerted between the core 2' and the lower disk7c increases as the intensity of the current flowing through the coilsof the solenoid increases. The said intensity varies with the voltage ofthe dynamo, and as the latter voltage tends to increase the core t'descends in the solenoid and, through the medium of the cord or wire 7tand disk 6, shifts the arm 0 in the direction of the arrow r and reducesthe lift of the eduction-valvc. The speed of the engine decreases andthe dynamo assumes its normal voltage.

Having now particularly described and ascertained the nature of ourinvention and in what manner the same may be performed, we declare thatwhat we claim is- In combination with an internal-combustion enginedriving a dynamo-electric machine, of a solenoid in shunt from thedynamo, an oscillating disk attached to the core of the solenoid, aninduction valve provided with a stem, a cam, and a horizontally-slidingarm connected with the disk, interposed between the stem and cam andoperated by the latter for actuating the former, the Whole arrangementbeing such as to vary the speed to of the motor according to theintensity of the current to be furnished by the dynamo, substantiall yas set forth.

In testimony whereof We have hereunto set our hands in presence of twosubscribing wit- ALBERT DE DION. GEORGES BOUTON. Witnesses:

HENRI ScHWAB, EDWARD P. MAOLEAN.

